US 12,030,300 B2
Printing machine with a twin printing unit and method of operating such a printing machine
Werner Schwab, Bechtsrieth (DE); and Hans Schadl, Hirschau (DE)
Assigned to Heidelberger Druckmaschinen AG, Heidelberg (DE)
Filed by Heidelberger Druckmaschinen AG, Heidelberg (DE)
Filed on Oct. 22, 2021, as Appl. No. 17/507,899.
Claims priority of application No. 102020213339.5 (DE), filed on Oct. 22, 2020.
Prior Publication US 2022/0126567 A1, Apr. 28, 2022
Int. Cl. B41F 23/04 (2006.01); B41F 5/24 (2006.01)
CPC B41F 23/04 (2013.01) [B41F 5/24 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A printing machine for printing on a printing substrate web, the printing machine comprising:
a plurality of inline flexographic printing units disposed in a plane accessible to a machine operator;
every two of said flexographic printing units of said plurality of flexographic printing units both printing on the same side of the web and together forming a duplex printing station; and
each one of said two flexographic printing units of a respective duplex printing station including a respective impression cylinder and a dryer disposed between said impression cylinders of said two flexographic printing units along a path of horizontal web travel of the printing substrate web.